CODEWITHSUNDEEP
javascriptangularjsarrays
Sathish
Sathish

Reputation: 159

How do we customize the grouping from actual array of objects in angularjs

I have to create my customized grouping order based on standardID in the following array of objects:

Actual Array:

var test=[
          {ID: "91",Name: "sgtue", standardID: "1"},
          {ID: "41",Name: "asdfasdf", standardID: "2"},
          {ID: "5", Name: "credd", standardID: "2"},
          {ID: "2",Name: "dddawer", standardID: "2"},
          {ID: "2",Name: "dsfadf", standardID: "3"},
          {ID: "275", Name: "xcvcvc", standardID: "201"}
         ]

Expected Result: I Simply want to group the standardID's like 1,3,2,2,2,201

[
    {ID: "91",Name: "sgtue", standardID: "1"},
    {ID: "2",Name: "dsfadf", standardID: "3"},
    {ID: "275", Name: "xcvcvc", standardID: "201"},
    {ID: "41",Name: "asdfasdf", standardID: "2"},
    {ID: "5", Name: "credd", standardID: "2"},
    {ID: "2",Name: "dddawer", standardID: "2"}
]

Kindly help me to sort out the problem.

Upvotes: 0

Views: 78

Answers (4)

pegla
pegla

Reputation: 1866

It's pure javascript and this will "sort" it your way, define your sort order in groupOrder variable:

var groupOrder = [1,3,201,2];
var testSorted = test.sort((a, b) => groupOrder.indexOf(parseInt(a.standardID))-groupOrder.indexOf(parseInt(b.standardID)));

Fiddle:

https://jsfiddle.net/pLe44x1x/1/

Upvotes: 0

Djaouad
Djaouad

Reputation: 22776

You can use JavaScript's sort function with your own criteria (map):

var test = [
  {ID: "91",Name: "sgtue", standardID: "1"},
  {ID: "41",Name: "asdfasdf", standardID: "2"},
  {ID: "5", Name: "credd", standardID: "2"},
  {ID: "2",Name: "dddawer", standardID: "2"},
  {ID: "2",Name: "dsfadf", standardID: "3"},
  {ID: "275", Name: "xcvcvc", standardID: "201"}
];
var myMap = {
            "1": 0,
            "3": 1,
            "2": 2
          };

test.sort((a, b) => myMap[a.standardID[0]] - myMap[b.standardID[0]]);
console.log(test);

Upvotes: 0

user8556290
user8556290

Reputation:

You can try this prototype custom sorting by attributes objects :

var test=[{ID: "91",Name: "sgtue", standardID: "1"},
{ID: "41",Name: "asdfasdf", standardID: "2"},
{ID: "5", Name: "credd", standardID: "2"},
{ID: "2",Name: "dddawer", standardID: "2"},
{ID: "2",Name: "dsfadf", standardID: "3"},
{ID: "275", Name: "xcvcvc", standardID: "201"}
];

https://codepen.io/anon/pen/KXNpMZ?editors=1112

@Sathish

UPDATED in ordered by indexes array reference here :

https://codepen.io/anon/pen/RLoZOX?editors=1112

Upvotes: 1

Akshay Hegde
Akshay Hegde

Reputation: 16997

var test = [{
    ID: "91",
    Name: "sgtue",
    standardID: "1"
  },
  {
    ID: "41",
    Name: "asdfasdf",
    standardID: "2"
  },
  {
    ID: "5",
    Name: "credd",
    standardID: "2"
  },
  {
    ID: "2",
    Name: "dddawer",
    standardID: "2"
  },
  {
    ID: "2",
    Name: "dsfadf",
    standardID: "3"
  },
  {
    ID: "275",
    Name: "xcvcvc",
    standardID: "201"
  }
];


// parseInt used because of your input datatype
var sortOrder = [1,3,2,201];
var out = test.sort(function(a, b) {
    return sortOrder.indexOf(parseInt(a.standardID)) - sortOrder.indexOf(parseInt(b.standardID));
});

//sorted
console.log(out)

Upvotes: 0

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